There are at least two kinds of considerations of truthfulness that a bullshitter categorically refuses to acknowledge: sincerity and accuracy. These are the virtues of truthfulness that Bernard Williams writes about in his last book Truth and Truthfulness. By ‘sincerity,’ Williams means the expression of a belief. By ‘accuracy,’ he means a concern with getting things right. When saying something he does not believe to be the case, an insincere person may obfuscate, mislead, lie, conceal, equivocate, or bullshit. Someone who cares nothing for accuracy has no trouble with the idea that he is missing the mark or not even within range of the target. He may not be taking aim at it anyway when he is horsing around.